STP1060

    Propagation of Surface Cracks in Notched and Unnotched Rods

    Published: Jan 1990


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    Abstract

    Stress-intensity factors for surface cracks in cylindrical bars have been calculated applying the method of weight functions. The weight function was obtained from the crack opening displacement of a reference load using the finite-element method. The results can be used for the prediction of growth rates and the shapes of the developing crack front for cracks in notched and unnotched cylindrical bars under arbitrary loading conditions. The predictions have been compared with experimental results.

    Keywords:

    surface cracks, fatigue crack growth, stress-intensity factors


    Author Information:

    Caspers, M
    Research engineer and group leader, Nuclear Research Center, Karlsruhe,

    Mattheck, C
    Research engineer and group leader, Nuclear Research Center, Karlsruhe,

    Munz, D
    Professordivision head, University of KarlsruheNuclear Research Center, Karlsruhe,


    Paper ID: STP23444S

    Committee/Subcommittee: E08.03

    DOI: 10.1520/STP23444S


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